CN104037020A - Electromagnetic switch - Google Patents
Electromagnetic switch Download PDFInfo
- Publication number
- CN104037020A CN104037020A CN201410224873.0A CN201410224873A CN104037020A CN 104037020 A CN104037020 A CN 104037020A CN 201410224873 A CN201410224873 A CN 201410224873A CN 104037020 A CN104037020 A CN 104037020A
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- China
- Prior art keywords
- diode
- end plate
- magnet exciting
- switch
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
Abstract
An electromagnetic switch (1) includes an excitation coil (10) that forms an electromagnet by energizing, movable cores (12, 26) driven by a magnetism generated in the excitation coil (10), a cylindrical frame (9) having a bottom that accommodates the excitation coil (10) and constitutes a part of a magnetic circuit of the excitation coil, an end plate (25) electrically connected with the frame (9), and diodes (51, 52) electrically connected with the excitation coil (10) in parallel. In addition, at least one of terminals of the diodes (51, 52) is fixed to the end plate (25).
Description
The application is to be dividing an application of April 13, application number in 2011 are 201110097562.9, denomination of invention is " electromagnetic switch " application the applying date.
Technical field
The present invention relates to a kind ofly by electromagnetic power, operate and be applicable to the electromagnetic switch such as the starter of vehicle.
Background technology
Up to the present, known a kind of electromagnetic switch, it has by electric current and produces the coil of electromagnetic power and by the power-actuated movable core of the electromagnetic driven producing in coil.
Known, there is coil as the electromagnetic switch impact excitation shearing device of magneto power source, inductance effect excitation and the cut-out coil of coil during the excitation of this excitation shearing device by when cutting off coil.
Especially, the contact relay that has fixed contact and an armature contact when use during as excitation shearing device, when excitation is cut off, causes electric arc between fixed contact and armature contact, and this causes the wearing and tearing of fixed contact and armature contact.
Especially; for being provided in for starting in the situation of electromagnetic switch etc. of starter of vehicle motor; wherein this vehicle has and when locating to stop at the parting of the ways, stops engine to improve the function (so-called idle stop function) of fuel consumption in vehicles; with compare in the past; the frequency of piloting engine is higher; therefore, also the frequency of operation electromagnetic switch will be improved.
Therefore,, in the above-mentioned electromagnetic switch of utilizing coil as magneto power source, the durability of excitation shearing device becomes problem.
In the open No.60-102469 of Japanese utility model application, for the problems referred to above, the electric current that flows to excitation shearing device when cutting off excitation by the coil to electromagnetic switch electrically parallel diode the anode terminal side of diode is compared with cathode terminal side become low potential to reduce, and while cutting off excitation in the loop at coil and diode, the electric current mobile due to the inductance of coil returns.
By the way, when the disclosed electromagnetic switch with diode of above-mentioned document is vibrated, electromagnetic switch must be installed, avoid vibration damage diode.
Especially, because starter is directly installed on engine conventionally, electromagnetic switch suffers strong vibration, therefore, needs additional attention for starting the starter of the engine of vehicle.
In addition,, along with the miniaturization of product in recent years, for the electromagnetic switch of product, also need miniaturization.
Summary of the invention
Make in view of the above problems the present invention, and the object of this invention is to provide and a kind ofly prevent that diode from damaging and make the electromagnetic switch that its size is as far as possible little simultaneously.
According in the electromagnetic switch of first aspect, electromagnetic switch comprise by excitation form the magnet exciting coil with single coil of electromagnet, the movable core of the magnetic drive that produces in magnet exciting coil, hold magnet exciting coil excitation coil magnetic circuit the framework of a part, the openend of cover framework the end plate being electrically connected to framework and with the magnet exciting coil diode being electrically connected in parallel.
In addition, one of them terminal of diode is fixed to end plate.
Therefore,, because one of them terminal of diode is fixed to end plate, therefore, when electromagnetic switch is born vibration, can prevent diode in electromagnetic switch and the Relative Vibration of end plate.
Therefore, can reduce to be applied to the stress on the wire of diode, and can prevent that diode from damaging.
In addition, due to the member of existing end plate with the diode that fixes, therefore can suppress for the fixedly increase of the size of the electromagnetic switch of diode.
According in the electromagnetic switch of second aspect, another terminal of diode is fixed to end plate via non-conductive member.
According in the electromagnetic switch of the third aspect, in end plate, be provided with the recess of the body that can hold diode, the body of diode is contained in this recess.
According in the electromagnetic switch of fourth aspect, the body of diode directly or via the member that there is no conductivity, be fixed to the surface of end plate.
According in the electromagnetic switch aspect the 5th, the body of diode by the ultraviolet curable resin that hardened by irradiation ultraviolet radiation directly or via the member that there is no conductivity, be fixed to the surface of end plate.
According in the electromagnetic switch aspect the 6th, arranged in series has a plurality of magnet exciting coils vertically, and a plurality of magnet exciting coil is fixed to framework.
Accompanying drawing explanation
In the accompanying drawings:
Fig. 1 illustrates the overall pattern of the starter in the first embodiment of the present invention;
Fig. 2 illustrates the profile of the electromagnetic switch of the starter in the first embodiment of the present invention;
Fig. 3 illustrates along the profile of the line A-A intercepting in Fig. 2;
Fig. 4 illustrates the profile amplifying along the part of the line B-B intercepting in Fig. 3;
Fig. 5 is the diagram that the electrical connection of the starter in the first embodiment of the present invention is shown; And
Fig. 6 is illustrated in the first embodiment of the present invention figure that passes through the mobile electric current of the inductance of magnet exciting coil after electromagnetic relay turn-offs.
Embodiment
(the first embodiment)
The embodiment of electromagnetic switch 1 of the present invention is described hereinafter with reference to accompanying drawing, and electromagnetic switch 1 of the present invention is applied to start the starter of the engine of vehicle.
As shown in Figure 1, the starter of the present embodiment has motor 2, output shaft 3, clutch 4, pinion 5, electromagnetic contact 6, driving lever 7 and electromagnetic actuator device 8.Output shaft 3 is driven by motor 2, and clutch 4 is bonded on the outer surface of output shaft 3 in helical spline mode.Pinion 5 forms with clutch 4, and is arranged on the outer surface of output shaft 3.
Electromagnetic contact 6 disconnects and closed main contacts (explanation subsequently), and electromagnetic actuator device 8 is released pinion 5 via driving lever 7 along anti-motor side direction (left side in figure).Electromagnetic contact 6 and electromagnetic actuator device 8 be arranged in series vertically, and forms one.
Below, in the present embodiment, electromagnetic contact 6 and electromagnetic actuator device 8 combinations are also called electromagnetic switch 1.
In addition, the composition of the parts except electromagnetic switch 1 (motor 2, output shaft 3, clutch 4, pinion 5 and driving lever 7 etc.) is identical with conventional starter with operation, in conventional starter, the operation of the operation of disconnection and closed main contacts and promotion pinion 5 is carried out by an electromagnetic switch 1, therefore omits the explanation to these parts.
With reference to Fig. 2, describe the composition of electromagnetic switch 1 in detail.In the following description, the right side of electromagnetic switch shown in Fig. 21 is called motor side (vertically), and left side is called pinion side (vertically).
Electromagnetic switch 1 has the tubular switch box 9 as framework, and this framework has bottom and forms shell.In switch enclosure 9, hold electromagnetic actuator device 8 and electromagnetic contact 6, and be used as the yoke that forms a part for magnetic circuit for electromagnetic actuator device 8 and a part for the magnetic circuit of electromagnetic contact 6.
In addition, can supply drive-side movable core 12 (explanation subsequently) circular hole 13 passing to be arranged in the bottom centre of the pinion side of switch enclosure 9.
The magnet exciting coil 10 of electromagnetic actuator device 8 is assembled in the pinion side of switch enclosure 9.
Magnet exciting coil 10 has the single coil that forms electromagnet by excitation.Magnet exciting coil 10 forms together with resin, and radially within it portion be provided with through hole.Scribble the copper cash of enamel paint along the circumferential direction around bobbin 14 coilings.
The magnetic sheet 15 of a part for the magnetic circuit of formation magnet exciting coil 10 and switch coil 11 is arranged in the motor side of magnet exciting coil 10.
Magnetic sheet 15 forms disk, and the external diameter of disk forms almost identical with the internal diameter of switch enclosure 9.
Be necessary to form magnetic sheet 15 with the magnetic material that can form magnetic circuit, and in the present embodiment, magnetic sheet 15 is formed by iron.
Opening 16 is arranged in magnetic sheet 15 center, and fixed iron core 17 inserts opening 16 from pinion side.
At a distolateral flange 18 that is formed with of fixed iron core 17, its external diameter is greater than that another is distolateral, the retainer 19 of stop magnetic sheet 15 be formed on another of fixed iron core 17 distolateral on.The pinion side surface of flange 18 contact magnetic sheets 15.
Driving side movable core 12 is assembled in magnet exciting coil 10.Driving side movable core 12 is through the hole 13 of switch enclosure 9 and to pinion side protrusion, and driving side movable core 12 is arranged in magnet exciting coil 10 slidably.
Spring force points to the spring 20 that driving side movable core 12 is released to the direction of pinion side and is arranged between driving side movable core 12 and fixed iron core 17.
Driving side movable core 12 has the cylindrical shape end of with, and its pinion side has opening, and motor side has bottom.
Driving shaft 21 is assembled in driving side movable core 12.Driving shaft 21 has flange at motor side, and flange has the diameter almost identical with the internal diameter of driving side movable core 12.
Driving spring 22 is arranged around the outer surface of driving shaft 21.The flange of one end in contact driving shaft 21 of driving spring 22, and the other end of driving spring 22 contact cap 23, the opening of cap 23 sealing movable cores 12 slidably supporting driving shaft 21.
The pinion side head of driving shaft 21 engages with driving lever 7.
As for driving the switch coil 11 of the magnet exciting coil of electromagnetic contact 6 to be arranged in the motor side of magnetic sheet 15.
Switch coil 11 forms together with resin, and radially within it portion be provided with through hole.Scribble the copper cash of enamel paint along the circumferential direction around 24 coilings of switch bobbin.
External diameter forms the motor side that the disc-shaped end plates 25 almost identical with the internal diameter of switch enclosure 9 is arranged in switch coil 11.End plate 25 is vitals of the present invention, therefore will elaborate subsequently.
The opening being communicated with the through hole of switch coil 11 is formed on end plate 25 center.
Switch-side movable core 26 is assembled in switch coil 11.Switch-side movable core 26 passes end plate 25 vertically, and is slidably arranged on switch coil 11 inside.
Spring force points to the back-moving spring 27 that switch-side movable core 26 is released to the direction of motor side and is arranged between switch-side movable core 26 and fixed iron core 17.
The recessed recess to pinion side is formed on the center on the motor side surface of switch-side movable core 26.The plunger rod 28 that is become column by resin-shaped is assembled on recess.
The mains side fixed contact 29 being electrically connected to power supply (not shown) and the motor side fixed contact 30 being electrically connected to motor 2 are arranged in the radial outside of plunger rod 28.
Plunger rod 28 extends to the motor side of mains side fixed contact 29 and motor side fixed contact 30, and the moving contact 31 of electric connection of power supply side fixed contact 29 and motor side fixed contact 30 is fixed on the termination of plunger rod 28.
When electric current is not supplied to switch coil 11, moving contact 31 is positioned at the state away from mains side fixed contact 29 and motor side fixed contact 30 certain intervals by the spring force of back-moving spring 27.
When switch-side movable core 26 is urged to pinion side by the electromagnetic power of switch coil 11, moving contact 31 moves to pinion side with together with plunger rod 28 on being fixed to movable core 26, and electric connection of power supply side fixed contact 29 and motor side fixed contact 30.
Power supply terminal 32 and the resin end cap 34 being formed from a resin are assembled on the motor side opening of switch enclosure 9.Power supply terminal 32 these openings of sealing, and be connected with mains side fixed contact 29.Resin end cap 34 supports and fixes the motor terminal 33 being connected with motor side fixed contact 30.
Contact pressure spring 35 is arranged in the core of switch enclosure 9 sides of resin end cap 34.Contact pressure spring 35 contact moving contacts 31, and its spring force points to the direction of moving contact 31 being pushed to pinion side.
Then, utilize Fig. 3 and Fig. 4 that vitals of the present invention is described---end plate 25.
Switch enclosure 9 electrical groundings.
The inner surface of the peripheral surface contact-making switch box 9 of end plate 25, end plate 25 is fixed in switch enclosure 9.
In addition, end plate 25 and switch enclosure 9 are electrically connected to.
The through hole 37 that can pass for the ground connection side wire 36 of magnet exciting coil 10 and the through hole 39 that can pass for the ground connection side wire 38 of switch coil 11 are formed in end plate 25.
Through through hole 37 and 39 ground connection side wire 36 and 38, in joint portion, 40 and 41 places are electrically connected to end plate 25 respectively, and are fixed thereon.
In addition, can apply the through hole 43 that side wire 42 passes and can apply for the electric current of switch coil 11 through hole 45 that side wire 44 passes for the electric current of magnet exciting coil 10 and be formed in end plate 25.
In addition, drive unit side leading-out terminal 47 and switch-side leading-out terminal 48 insulating element 46 through being formed from a resin is fixed on end plate 25 at motor side.
By the insulating element 46 between end plate 25, drive unit side leading-out terminal 47 and switch-side leading-out terminal 48, mutually guarantee electric insulation.
Referring to Fig. 3 and Fig. 4, describe leading-out terminal 47 and 48 in detail.
The electric current of magnet exciting coil 10 applies side wire 42 and is electrically connected to drive unit side leading-out terminal 47.
The electric current of switch coil 11 applies side wire 44 and is electrically connected to switch-side leading-out terminal 48.
Applying with electric current the junction surface 49 and 50 that the termination of side wire 42 and 44 engages and be electrically connected to is arranged on leading-out terminal 47 and 48.
Particularly, by bending, the metallic plate as conductor forms leading-out terminal 47 and 48, and end forms band thinly.
Strip-type end applies the termination coiling of side wire 42 and 44 around the electric current of having removed enamel paint coating.
The cathode side terminal 53 of electrical connection fixedly diode 51 and 52 (explanation subsequently) and 54 diode junction surface 55 and 56 are arranged into respectively on leading-out terminal 47 and 48.
More specifically, leading-out terminal 47 and a part of 48 are parallel to end plate 25 extends and forms similar band, this ribbon part after end plate 25 bends to motor side around cathode side terminal 53 and 54 coilings.
Diode 51 is connected and is fixed thereon with the motor side surface electrical of end plate 25 with 52 anode-side terminal.
In addition, in the present embodiment, to the outstanding circular protrusions 25a of motor side and 25b, be formed on the motor side of end plate 25, diode 51 and 52 anode-side terminal are respectively fixed on the motor side surface of protuberance 25a and 25b.
Thus, diode 51 and 52 anode-side terminal are electrically connected to grounding parts by end plate 25.
Protuberance 25a and 25b are identical with the position of the most close end plate 25 of the anode-side terminal of diode 51 and 52 to the surperficial height setting of end plate 25 in motor side.
The spill spatial accommodation 57 and 58 that holds the cylindrical body of each diode 51 and 52 is formed on the motor side surface of end plate 25.
Only about half of being contained in spatial accommodation 57 and 58 that the footpath of diode 51 and 52 cylindrical body separately makes progress, and by fixed part such as resin is fixed.
More specifically, the ultraviolet curable resin hardening by irradiation ultraviolet radiation is as fixed part.
Ultraviolet curable resin does not have electrical conductivity, and can be from can suitably selecting during applying when vibration and support those parts of diode 51 and 52.
Then, utilize Fig. 5 that the electrical connection of starter is described.
In the explanation of the electrical connection about following starter, term " connection " refers to status of electrically connecting.
Be equipped with the starter of electromagnetic switch 1 of the present invention by the DC power supply being arranged in vehicle---secondary cell 60 operations.
Although secondary cell 60 is mounted in the lead-acid battery with 12V electromotive force in vehicle in the present embodiment, can adopt be suitable for vehicle motor idle stop operation such as lithium rechargeable battery etc.
The negative terminal of secondary cell 60 is connected with grounding parts, and positive terminal distributes and be connected to the power supply terminal 32 of one of them fixed contact and the electromagnetic switch 1 of electromagnetic relay 61.
At this, the engine start request according to driver's vehicle launch request and while stopping idling, controls electromagnetic relay 61 by vehicle ECU62.
Another fixed contact of electromagnetic relay 61 is connected with drive unit side leading-out terminal 47 by the connector (not shown) being arranged on resin end cap 34.
In addition, diode 51 is electrically connected to magnet exciting coil 10 is in parallel.More specifically, the cathode side terminal of diode 51 and the electric current of magnet exciting coil 10 apply side wire 42 and are connected with drive unit side leading-out terminal 47.
The ground connection side wire 36 of the anode-side terminal of diode 51 and magnet exciting coil 10 is connected with grounding parts.
The switch-side leading-out terminal 48 of electromagnetic contact 6 is connected with vehicle ECU62 by the connector (not shown) being arranged on resin end cap 34.
Diode 52 is electrically connected to switch coil 11 is in parallel.More specifically, the cathode side terminal of diode 52 and the electric current of switch coil 11 apply side wire 44 and are connected with switch-side leading-out terminal 48.
In addition, the ground connection side wire 38 of the anode-side terminal of diode 52 and switch coil 11 is connected with grounding parts.
The motor terminal 33 of electromagnetic contact 6 is connected with motor 2.Therefore,, when operation electromagnetic contact 6, power supply terminal 32 is connected with motor terminal 33, so electric current supply is to motor 2.
Then, utilize Fig. 1 and Fig. 5 explanation to there is the operation of the starter of electromagnetic switch 1 of the present invention.
First, when vehicle ECU62 starts electromagnetic relay 61, the electric current of supplying with from secondary cell 60 flows to magnet exciting coil 10.
Then, the electromagnetic attracting force that driving side movable core 12 is produced by magnet exciting coil 10 is to motor side.
Then, clutch 4 and pinion 5 are released pinion side (side of the ring gear 63 of vehicle motor) via the driving lever 7 engaging with driving shaft 21.
Thus, the ring gear 63 of pinion 5 and vehicle motor contacts, and driving spring 22 is compressed.
After pinion 5 contacts with the ring gear 63 of vehicle motor, vehicle ECU62 is applied to electric current the switch-side leading-out terminal 48 of electromagnetic contact 6.
Then, moving contact 31 is by the electromagnetic attracting force being produced by switch coil 11, and therefore, mains side fixed contact 29 is connected with motor side fixed contact 30.
Thus, electric current flows to motor terminal 33 from power supply terminal 32, motor 2 rotations.
The torque being produced by the rotation of motor 2 is delivered to pinion 5 by clutch 4.
Therefore, when pinion 5 rotates to the position that it can engage with ring gear 63, pinion 5 is stored in the reaction force in driving spring 22 by reception and engages with ring gear 63, and revolving force is delivered to ring gear 63 from pinion 5, starts thus vehicle motor.
When confirming vehicle motor starting, vehicle ECU62 disconnects the electric current that is applied to electromagnetic relay 61 and electromagnetic contact 6.
Then, with reference to Fig. 5 and Fig. 6, describe the effect of electromagnetic switch 1 of the present invention in detail.
Fig. 6 be illustrated in electromagnetic relay 61 by vehicle ECU62, turn-offed after by the figure of the mobile electric current of the inductance of magnet exciting coil 11.
First, when vehicle ECU62 turn-offs electromagnetic relay 61, attempt to make electric current applies side wire 42 power by electric current because the inductance of magnet exciting coil 10 self acts on magnet exciting coil 10.
This is because magnet exciting coil 10 of the present invention forms single continuous coil.
In Fig. 6, drawn by thering is the conventional magnet exciting coil of two coils (sucking coil and hold-in winding) and thering is the variation of electric current of magnet exciting coil 10 induction of single coil of the present invention.
According to this figure, the in the situation that of two coils, when turn-offing electromagnetic relay after 61 a moments, electric current becomes 0.
But, the in the situation that of single coil, electric current in time gradually become in the past 0.In other words, the in the situation that of single coil, during the certain hour section of the electric current of attempting to apply side wire by electric current after turn-offing electromagnetic relay 6, act on.
Therefore, suppose and do not arrange diode 51, electric current flows to electromagnetic relay 61 by driving side leading-out terminal 47, thereby likely between the contact of electromagnetic relay 61, causes electric arc.
On the other hand, in the present embodiment, the electric current of magnet exciting coil 10 applies side wire 42 and is connected via diode 51 with grounding parts.
That is, when electromagnetic relay 61 disconnects, form the closed circuit of magnet exciting coil 10, grounding parts and diode 51, due to inductance, electric current flows back to along closed circuit.
Therefore, can reduce to flow back into the electric current of electromagnetic relay 61.
In addition, when vehicle ECU is applied to the electric current disconnection on switch coil 11, as magnet exciting coil 10, due to inductance, generation current in switch coil 11.
Like this, if do not arrange diode 52, electric current flow back into vehicle ECU62.
But, in the present embodiment, after vehicle ECU62 disconnects the electric current that is applied to switch coil 11, forming the closed circuit of switch coil 11, grounding parts and diode 52, the electric current being produced by inductance flows back in closed circuit.
Therefore, can reduce to flow back to the electric current of vehicle ECU62.
Because the electromagnetic switch 1 in the present embodiment has diode 51 and 52, therefore, the inductive current producing after the electric current that is applied to magnet exciting coil 10 and switch coil 11 disconnects can flow back to closed circuit.
Therefore, can reduce to flow back into the electric current of electromagnetic relay 61 and vehicle ECU62, and reduce to damage the possibility of electromagnetic relay 61 and vehicle ECU62.
In addition, in the present embodiment, because the anode-side terminal of diode 51 and 52 is fixed on end plate 25, therefore, diode 51 and 52 can firmly fix, and without arranging independently supporting member.
In addition, in the present embodiment, spatial accommodation 57 and 58 is arranged in end plate 25, and diode 51 and 52 cylindrical body are fixed to spatial accommodation 57 and 58.
Like this, end plate 25 can be used as the fixedly parts of diode, and diode 51 and 52 can be supported reliably makes its size as far as possible little simultaneously.
In addition, in the present embodiment, because the cylindrical body of diode 51 and 52 utilizes fixed component such as resin is fixed to spatial accommodation 57 and 58, therefore, when increasing vibration from outside, can reduce diode 51 and 52 possibilities of damaging, can reduce to damage thus the possibility of diode 51 and 52.
In addition, in the present embodiment, use the ultraviolet curable resin harden by irradiation ultraviolet radiation as the fixed component of fixing diode 51 and 52 such as resin.
Like this, when fixed component hardens, electromagnetic switch 1 and diode 51 and 52 do not need as such as being generally used for long-time being arranged in hot environment the thermosetting resin of fixing semiconductor element, therefore, can reduce parts due to temperature produce aging.
In addition, in the present embodiment, the circular protrusions 25a and the 25b that are projected into motor side are formed on the motor side of end plate 25, and diode 51 and 52 anode-side terminal are respectively fixed on the motor side surface of protuberance 25a and 25b.
In addition, protuberance 25a and 25b in motor side to the surperficial height setting of end plate 25 for the position that approaches most end plate 25 of the anode-side terminal with diode 51 and 52 identical.
Like this, when using the diode at the two ends of cylinder-shaped body with anode-side and cathode side wire as the present embodiment, can be stabilized under the state on protuberance 25a and 25b and carry out and connect operation at wire.
Therefore, because the positions of the operating efficiency raising connecting and diode 51 and 52 settings are designated, so can improve connection quality.
(other embodiment)
Although electromagnetic switch 1 of the present invention is applied to start the starter of vehicle motor in the above-described embodiments, electromagnetic switch 1 of the present invention can be widely used in utilization along the various device of the axial actuating force of the movable core of the magnetic drive being produced by magnet exciting coil.
In addition, although the example that the anode-side terminal of diode 51 and 52 is electrically connected to grounding parts has been described in the above-described embodiments, the present invention is not limited to this, also allows on the contrary the current potential of cathode side terminal of diode 51 and 52 lower than anode-side terminal.
In addition, although illustrated in the above-described embodiments and used ultraviolet curable resin diode 51 and 52 to be fixed on to the example in the spatial accommodation 57 and 58 being arranged in end plate 25, but the present invention is not limited to this, but diode 51 and 52 can be assembled and be fixed on fixed retainer.Fixed retainer has the recess with the form fit of the cylindrical body of diode 51 and 52, and fixed retainer tool is formed on the motor side of end plate 25 with resin that there is no conductivity etc., and fixed retainer is assembled on end plate 25 independently.
In addition, diode 51 and 52 body can, by fixed component, such as ultraviolet curable resin, be fixed on fixed retainer.
Like this, can guarantee more definitely the insulation of end plate 25 and diode 51 and 52.
In addition, although illustrated that in the above-described embodiments of using at cylindrical body has an anode-side wire on distolateral and have the example of the diode of cathode side wire on another is distolateral, but the present invention is not limited to this, but can adopt, there is the die casting encapsulation type diode of hexahedron body or be integrated in a plurality of diodes in single die casting encapsulation.
In addition, when adopting die casting encapsulation type diode, wire can be fixed to separately on anode-side and cathode side terminal by welding.
In addition, the present invention is not limited to above-described embodiment, but as long as it does not depart from invention disclosed in claims, the present invention can implement by any way.
Claims (6)
1. an electromagnetic switch, comprising:
Magnet exciting coil, described magnet exciting coil has the single coil that forms electromagnet by excitation;
Movable core, the magnetic drive that described movable core produces in described magnet exciting coil;
Framework, described framework holds described magnet exciting coil and forms a part for the magnetic circuit of described magnet exciting coil;
End plate, described end plate covers the openend of described framework and is electrically connected to described framework; And
Diode, described diode is electrically connected to described magnet exciting coil is in parallel;
Wherein, one of them terminal of described diode is fixed to described end plate.
2. electromagnetic switch according to claim 1, wherein
Another terminal of described diode is fixed to described end plate via non-conductive member.
3. electromagnetic switch according to claim 1 and 2, wherein
In described end plate, be provided with the recess of the body that can hold described diode, and
The body of described diode is contained in described recess.
4. according to the electromagnetic switch described in claim 1,2 or 3, wherein
The body of described diode directly or via the member that there is no conductivity, be fixed to the surface of described end plate.
5. electromagnetic switch according to claim 4, wherein
The body of described diode by the ultraviolet curable resin that utilizes irradiation ultraviolet radiation and harden directly or via the member that there is no conductivity, be fixed to the surface of described end plate.
6. according to the electromagnetic switch described in any one in claim 1-5, wherein
Arranged in series has a plurality of described magnet exciting coils vertically, and a plurality of described magnet exciting coil is fixed to described framework.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010092358A JP5447122B2 (en) | 2010-04-13 | 2010-04-13 | Electromagnetic switch |
| JP2010-092358 | 2010-04-13 | ||
| CN201110097562.9A CN102243938B (en) | 2010-04-13 | 2011-04-13 | Electromagnetic switch |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110097562.9A Division CN102243938B (en) | 2010-04-13 | 2011-04-13 | Electromagnetic switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104037020A true CN104037020A (en) | 2014-09-10 |
| CN104037020B CN104037020B (en) | 2016-05-25 |
Family
ID=44760503
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410224873.0A Expired - Fee Related CN104037020B (en) | 2010-04-13 | 2011-04-13 | Electromagnetic switch |
| CN201110097562.9A Expired - Fee Related CN102243938B (en) | 2010-04-13 | 2011-04-13 | Electromagnetic switch |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110097562.9A Expired - Fee Related CN102243938B (en) | 2010-04-13 | 2011-04-13 | Electromagnetic switch |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8570123B2 (en) |
| JP (1) | JP5447122B2 (en) |
| CN (2) | CN104037020B (en) |
| DE (1) | DE102011002004A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072850A (en) * | 2016-04-27 | 2018-12-21 | 三菱电机株式会社 | Electromagnetic starter switch device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5488233B2 (en) * | 2010-06-11 | 2014-05-14 | 株式会社デンソー | Electromagnetic switch |
| JP2012167551A (en) * | 2011-02-10 | 2012-09-06 | Denso Corp | Electromagnetic switch device |
| WO2012139129A2 (en) | 2011-04-07 | 2012-10-11 | Remy Technologies, Llc | Starter machine system and method |
| US9121380B2 (en) | 2011-04-07 | 2015-09-01 | Remy Technologies, Llc | Starter machine system and method |
| US8872369B2 (en) | 2012-02-24 | 2014-10-28 | Remy Technologies, Llc | Starter machine system and method |
| US8860235B2 (en) | 2012-02-24 | 2014-10-14 | Remy Technologies, Llc | Starter machine system and method |
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| US8733190B2 (en) | 2012-04-25 | 2014-05-27 | Remy Technologies, Llc | Starter machine system and method |
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| CN109072850B (en) * | 2016-04-27 | 2020-07-14 | 三菱电机株式会社 | Electromagnetic switch device for starter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011002004A1 (en) | 2012-05-24 |
| JP2011222410A (en) | 2011-11-04 |
| US20110248803A1 (en) | 2011-10-13 |
| CN102243938A (en) | 2011-11-16 |
| CN102243938B (en) | 2014-07-02 |
| CN104037020B (en) | 2016-05-25 |
| JP5447122B2 (en) | 2014-03-19 |
| US8570123B2 (en) | 2013-10-29 |
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